Putter head



FIG. 1 is a rear perspective view thereof;

FIG. 2 is a top plan view thereof;

FIG. 3 is a toe side view thereof;

FIG. 4 is a back plan view thereof;

FIG. 5 is a heel side view thereof;

FIG. 6 is a front plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The dashed lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a putter head, as shown and described. 